Z63.1 Problems in relationship with in-laws

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applies from Z63 Other problems related to primary support group, including family circumstances

Excludes2 (not included here)

• maltreatment syndrome (T74.-, T76)
• parent-child problems (Z62.-)
• problems related to negative life events in childhood (Z62.-)
• problems related to upbringing (Z62.-)

MS-DRG index

Defines the logic of DRG(s) 951 in MDC 23.

Approximate ICD-9-CM (GEMs)

• V61.8 Other specified family circumstances (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.

Code annotations containing back-references to Z63.1

Back-references to Z63

• Type 2 Excludes: Z72 Problems related to lifestyle ("problems related to socioeconomic and psychosocial circumstances (Z55-Z65)")
• Type 2 Excludes: Z73 Problems related to life management difficulty ("problems related to socioeconomic and psychosocial circumstances (Z55-Z65)")

Diagnosis Index entries for Z63.1

• Discord (with) › in-laws
• Problem (with) (related to) › in-law

Nearby codes

• Z63 Other problems related to primary support group, including family circumstances
• Z63.0 Problems in relationship with spouse or partner
• Z63.1 Problems in relationship with in-laws (this code)
• Z63.3 Absence of family member
• Z63.31 Absence of family member due to military deployment
• Z63.32 Other absence of family member
• Z63.4 Disappearance and death of family member
• Z63.5 Disruption of family by separation and divorce